TW200917677A - Method and apparatus for removing pilot channel amplitude dependencies from rake receiver output - Google Patents

Method and apparatus for removing pilot channel amplitude dependencies from rake receiver output Download PDF

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Publication number
TW200917677A
TW200917677A TW097118715A TW97118715A TW200917677A TW 200917677 A TW200917677 A TW 200917677A TW 097118715 A TW097118715 A TW 097118715A TW 97118715 A TW97118715 A TW 97118715A TW 200917677 A TW200917677 A TW 200917677A
Authority
TW
Taiwan
Prior art keywords
channel
receiver
signal
signal interference
pilot
Prior art date
Application number
TW097118715A
Other languages
English (en)
Chinese (zh)
Inventor
Elias Jonsson
Andreas Cedergren
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of TW200917677A publication Critical patent/TW200917677A/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Noise Elimination (AREA)
TW097118715A 2007-05-22 2008-05-21 Method and apparatus for removing pilot channel amplitude dependencies from rake receiver output TW200917677A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/752,014 US7738535B2 (en) 2007-05-22 2007-05-22 Method and apparatus for removing pilot channel amplitude dependencies from RAKE receiver output

Publications (1)

Publication Number Publication Date
TW200917677A true TW200917677A (en) 2009-04-16

Family

ID=39739858

Family Applications (1)

Application Number Title Priority Date Filing Date
TW097118715A TW200917677A (en) 2007-05-22 2008-05-21 Method and apparatus for removing pilot channel amplitude dependencies from rake receiver output

Country Status (8)

Country Link
US (1) US7738535B2 (fr)
EP (1) EP2162995B1 (fr)
CN (1) CN101689883B (fr)
AT (1) ATE506760T1 (fr)
DE (1) DE602008006403D1 (fr)
ES (1) ES2364884T3 (fr)
TW (1) TW200917677A (fr)
WO (1) WO2008141822A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4869778B2 (ja) * 2006-01-18 2012-02-08 株式会社エヌ・ティ・ティ・ドコモ 送信装置、受信装置および通信方法
US7747285B2 (en) * 2007-07-11 2010-06-29 Alcatel-Lucent Usa Inc. Method of transmit beamforming for multicasting in a wireless communication system
US8406280B2 (en) 2008-03-18 2013-03-26 Argon St, Inc. System and method for mitigating severe multipath interference for geolocation and navigation
US7929593B2 (en) * 2008-04-15 2011-04-19 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for successive interference subtraction with covariance root processing
US8625724B2 (en) * 2009-03-10 2014-01-07 Qualcomm Incorporated Adaptive tracking steps for time and frequency tracking loops
US8305921B2 (en) * 2009-04-03 2012-11-06 Quantenna Communications, Inc. Channel selection and interference suppression
WO2012103934A1 (fr) * 2011-02-01 2012-08-09 Telefonaktiebolaget L M Ericsson (Publ) Configuration de récepteur sans fil
US9276629B2 (en) * 2011-11-17 2016-03-01 Intel Deutschland Gmbh Rake receiver circuit and method for operating a rake receiver circuit
US8787427B2 (en) * 2012-05-10 2014-07-22 Telefonaktiebolaget L M Ericsson (Publ) Chip-level processing for joint demodulation in CDMA receivers
EP3051871B1 (fr) * 2013-09-26 2017-10-25 Fujitsu Limited Station de base, station mobile, système de communication sans fil et procédé de communication sans fil

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US7369523B2 (en) * 2002-02-20 2008-05-06 Texas Instruments Incorporated Data signal demodulation in a communication system
JP2003283375A (ja) * 2002-03-22 2003-10-03 Toshiba Corp Ｃｄｍ受信装置
AU2003244955A1 (en) * 2002-06-25 2004-01-06 Koninklijke Philips Electronics N.V. Mt-cdma using spreading codes with interference-free windows
US7349379B2 (en) * 2002-08-13 2008-03-25 Texas Instruments Incorporated Channel normalization
WO2004019576A1 (fr) * 2002-08-14 2004-03-04 Telefonaktiebolaget Lm Ericsson (Publ) Recepteur et procede de decodage de donnees tronquees
GB0229247D0 (en) 2002-12-13 2003-01-22 Koninkl Philips Electronics Nv Television display unit
US7555067B2 (en) * 2003-03-13 2009-06-30 Texas Instruments Incorporated Method and apparatus for decoder input scaling based on interference estimation in CDMA
GB2401004B (en) 2003-04-22 2007-01-17 Toshiba Res Europ Ltd Rake receiver
JP4444961B2 (ja) * 2003-05-19 2010-03-31 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 伝送チャネルのチャネル評価の決定
CN100574128C (zh) * 2003-05-19 2009-12-23 Lm爱立信电话有限公司 一种确定传输信道的信道评估的方法和装置
DE10329632B4 (de) * 2003-07-01 2005-08-18 Infineon Technologies Ag Verfahren und Vorrichtung zur Gewichtung von Kanalkoeffizienten in einem Rake-Empfänger
US20050195886A1 (en) * 2004-03-02 2005-09-08 Nokia Corporation CPICH processing for SINR estimation in W-CDMA system
US7339980B2 (en) * 2004-03-05 2008-03-04 Telefonaktiebolaget Lm Ericsson (Publ) Successive interference cancellation in a generalized RAKE receiver architecture
US9025638B2 (en) * 2004-06-16 2015-05-05 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus to compensate for receiver frequency error in noise estimation processing
EP1672807B1 (fr) 2004-12-20 2011-12-07 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Mise à l'échelle dans un recépteur pour symboles de données digitals codifiés
US7668226B2 (en) 2005-02-23 2010-02-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for estimating gain offsets for amplitude-modulated communication signals
US20060199544A1 (en) * 2005-03-02 2006-09-07 Lucent Technologies Inc. Method for exploiting the diversity across frequency bands of a multi-carrier cellular system
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JP4604796B2 (ja) * 2005-03-29 2011-01-05 ソニー株式会社 無線通信装置及び無線通信方法
CN101233698B (zh) * 2005-07-26 2012-10-03 日本电气株式会社 在闭环发送分集通信系统中测量信道质量的方法
KR100975701B1 (ko) * 2006-01-26 2010-08-12 삼성전자주식회사 부호분할 다중접속 방식의 고속 패킷 데이터 시스템에서 다중 안테나를 이용하는 단말의 결합 방식에 따른 가중치의 동적 영역 제어 장치 및 방법

Also Published As

Publication number Publication date
CN101689883A (zh) 2010-03-31
ES2364884T3 (es) 2011-09-16
ATE506760T1 (de) 2011-05-15
WO2008141822A1 (fr) 2008-11-27
US20080291981A1 (en) 2008-11-27
CN101689883B (zh) 2013-07-03
EP2162995A1 (fr) 2010-03-17
EP2162995B1 (fr) 2011-04-20
DE602008006403D1 (de) 2011-06-01
US7738535B2 (en) 2010-06-15

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